> For the complete documentation index, see [llms.txt](https://docs.mtoolstec.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mtoolstec.com/hardware/nfc-and-rfid-emulators.md).

# NFC & RFID Emulators

Compare NFC and RFID emulators from MTools Tec, including Chameleon Ultra, PN532Killer, Pixl.js, GroveNFC, Flipper Zero and ST25R3916 devices.

Choose an NFC or RFID emulator by frequency, protocol, connection and workflow. This collection covers portable tag emulators, reader/emulator development tools, Amiibo-compatible devices and multi-purpose security research hardware.

[Browse all RFID emulators](https://shop.mtoolstec.com/product-category/rfid-emulator/)

## Quick comparison

| Product family            | Best for                                                 | Frequency / protocols                                        | Connection                           |
| ------------------------- | -------------------------------------------------------- | ------------------------------------------------------------ | ------------------------------------ |
| Chameleon Ultra family    | Portable LF/HF reading, emulation and authorized testing | 125 kHz and 13.56 MHz; support varies by firmware            | Bluetooth and USB                    |
| Chameleon Mini / Lite     | Compact MIFARE-focused emulation                         | 13.56 MHz, primarily ISO14443A                               | USB or Bluetooth, depending on model |
| PN532Killer               | Reader, emulator, sniffer and protocol testing           | ISO14443A/B, ISO15693 and EM4100                             | Model-dependent                      |
| Pixl.js                   | Amiibo and interactive NFC tag collections               | 13.56 MHz NFC                                                | Bluetooth / USB firmware workflow    |
| GroveNFC / ST25R3916 Unit | Embedded development and custom NFC projects             | ISO14443A/B, FeliCa and ISO15693; emulation varies by device | Grove / I2C                          |
| Flipper Zero              | Multi-protocol portable experimentation                  | NFC, LF RFID and other radios                                | USB and Bluetooth                    |

{% hint style="info" %}
Protocol support, tag capacity and reader mode differ by model and firmware. Check the product page before ordering; “NFC emulator” does not mean every NFC or RFID protocol is supported.
{% endhint %}

## Chameleon portable emulators

### Chameleon Ultra

A portable open-source LF/HF RFID tool for reading, emulation and authorized security research. It is the most complete choice in the Chameleon family when both 125 kHz and 13.56 MHz workflows are required.

* [Chameleon Ultra](https://shop.mtoolstec.com/product/chameleon-ultra/)
* [Chameleon Ultra SE](https://shop.mtoolstec.com/product/chameleonultra-se/) — compact hardware variants with the same software ecosystem
* [ChameleonUltra Dev Kit](https://shop.mtoolstec.com/product/chamleonultra-dev-kit/) — development and integration package
* [Setup and usage guide](https://docs.mtoolstec.com/how-to-use-chameleonultra)
* [Firmware upgrade guide](https://docs.mtoolstec.com/upgrade-the-firmware-of-chameleonultra-and-chameleonlite)

### Chameleon Lite and Chameleon Mini

Choose these for smaller, focused 13.56 MHz / MIFARE emulation workflows where the full dual-frequency feature set of Chameleon Ultra is not required.

* [Chameleon Lite](https://shop.mtoolstec.com/product/chameleon-lite/)
* [Chameleon Mini Rev.E RDV 2.0](https://shop.mtoolstec.com/product/chameleon-mini-rev-e-rdv-2-0-2022/)

## NFC emulators and development tools

### PN532Killer

A multi-function reader, emulator and sniffer for ISO14443A, ISO14443B, ISO15693 and EM4100 research workflows.

* [PN532Killer](https://shop.mtoolstec.com/product/pn532killer/)
* [M5StickC adapter](https://shop.mtoolstec.com/product/m5stickc-adapter-for-pn532killer/)

### Pixl.js OLED for Amiibo

A display-equipped NFC device designed for managing compatible virtual tag collections and Amiibo workflows.

* [Pixl.js OLED for Amiibo](https://shop.mtoolstec.com/product/pixl-with-oled-for-amiibo/)
* [Pixl.js firmware upgrade guide](https://docs.mtoolstec.com/upgrade-the-firmware-of-pixl.js)

### GroveNFC

An open communication NFC module for M5Stick, AtomS3, CardPuter and other Grove-compatible hosts. It supports reader and emulator development with open-source demo firmware.

* [GroveNFC Open-Source NFC Module](https://shop.mtoolstec.com/product/grovenfc/)

### M5Stack NFC Universal Unit (ST25R3916)

An I2C NFC reader/writer and development unit supporting ISO14443A/B, FeliCa and ISO15693, plus NFC-A and NFC-F card emulation modes.

* [M5Stack NFC Universal Unit](https://shop.mtoolstec.com/product/m5stack-nfc-universal-unit-st25r3916-13-56mhz-rfid-reader-writer-module/)

## Multi-purpose device

### Flipper Zero

A portable multi-tool that includes NFC and LF RFID functions alongside other radio and hardware interfaces. Choose it for broader experimentation rather than a dedicated NFC-only workflow.

* [Flipper Zero](https://shop.mtoolstec.com/product/flipper-zero/)

## Apps, firmware and next steps

* [MTools BLE](https://docs.mtoolstec.com/help-and-info-mtools-lite) — mobile workflows for supported Chameleon devices
* [How to use Chameleon Ultra](https://shop.mtoolstec.com/how-to-use-chameleon-ultra/) — product setup, apps and desktop tools
* [RFID, NFC & UHF hardware overview](https://docs.mtoolstec.com/rfid-nfc-and-uhf-hardware)
* [Browse the full emulator collection](https://shop.mtoolstec.com/product-category/rfid-emulator/)

{% hint style="warning" %}
Use emulation, cloning, sniffing and security-testing functions only on tags, credentials and systems you own or have explicit authorization to test. Capabilities and legal requirements vary by jurisdiction.
{% endhint %}